Kev yug menyuam lig yog qhov txaus ntshai vim muaj protein ntau

Kev yug menyuam lig yog qhov txaus ntshai vim muaj protein ntau
Kev yug menyuam lig yog qhov txaus ntshai vim muaj protein ntau
Anonim

Cov poj niam uas yug hauv lawv lub hnub nyoog peb caug txog rau plaub caug xyoo muaj kev pheej hmoo siab dua ntawm kev loj hlob ntawm fetus los yog nchuav menyuam, vim ntau lub qe muaj cov chromosomes tsis txaus, tab sis qhov laj thawj ntawm qhov no tseem tsis tau paub txog txog tam sim no.

Duab
Duab

Kev tshawb fawb tshiab los ntawm cov kws tshawb fawb yog ib kauj ruam loj rau hauv kev nkag siab tias vim li cas cov poj niam laus thiaj li tsim cov qe txawv txav, uas ua rau muaj qhov tshwm sim ntawm kev nchuav menyuam, kev xeeb tub thiab cov teeb meem fetal-neonatal twb muaj thaum yug los (xws li Down syndrome).

Cov kws tshawb fawb hauv University of Newcastle thiab Newcastle Infertility Center tau pom tias qib ntawm cov protein hu ua cohesin, uas pab cov hlwb sib faib, txo qis thaum cov poj niam muaj hnub nyoog. Yog tias tsis muaj cohesin protein ntau txaus, lub qe sib faib tsis sib npaug, ua rau "txias" ntawm tes faib thiab muaj cov chromosomes txawv txav, Telegraph qhia.

Nyob rau hauv kev tshawb fawb coj los ntawm Dr. Mary Herbert, cov kws tshawb fawb tau qhia txog cov nas me thiab laus li cas cohesin qib txo qis li poj niam nas hnub nyoog. Qhov tshwm sim yog qhov tsis muaj zog ntawm kev sib koom ua ke (cohesion) ntawm cov chromosomes, yog li cov txheej txheem ntawm kev faib tawm ntawm tes sib npaug raug puas tsuaj, cov qe puas hauv txoj kev no tsis tsim, ua rau muaj menyuam tsis taus, nchuav menyuam lossis kev xeeb tub thaum yug los.

Dr. Raws li Herbert, tus kws tshaj lij ntawm kev yug me nyuam biology ntawm Lub Tsev Haujlwm Saib Xyuas Kev Laus thiab Kev Noj Qab Haus Huv, xav tau kev tshawb fawb ntxiv kom nkag siab tias vim li cas cov qib cohesin txo qis nrog lub hnub nyoog."Yog tias peb nkag siab cov txheej txheem, peb kuj tuaj yeem pom tias muaj lub sijhawm los cuam tshuam kom cov qib protein tsis txo qis mus rau qhov zoo li no," nws hais. "Yog lawm, txoj hauv kev zoo tshaj plaws rau cov poj niam kom zam qhov teeb meem no yog kom muaj menyuam thaum yau."

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